2012164940 has 24 divisors (see below), whose sum is σ = 4315453632. Its totient is φ = 787740800.

The previous prime is 2012164939. The next prime is 2012164943. The reversal of 2012164940 is 494612102.

It is not an unprimeable number, because it can be changed into a prime (2012164943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1069361 + ... + 1071240.

It is an arithmetic number, because the mean of its divisors is an integer number (179810568).

Almost surely, 2^2012164940 is an apocalyptic number.

2012164940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012164940 is an abundant number, since it is smaller than the sum of its proper divisors (2303288692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2012164940 is a wasteful number, since it uses less digits than its factorization.

2012164940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140657 (or 2140655 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2012164940 is about 44857.1615241089. The cubic root of 2012164940 is about 1262.4703654776.

The spelling of 2012164940 in words is "two billion, twelve million, one hundred sixty-four thousand, nine hundred forty".